Recent Trends in Geotechnical and Geo-Environmental Engineering and Education
Open Access Journal
2021 launching volume and issues (Volume 1, Issues 1-3, 2021)
RTGEE Journal provides a cost effective platform for peer reviewed journal publication and dissemination of research information in the discipline of Geotechnical and Geo-Environmental Engineering and Education. The Journal welcomes full papers, short technical notes, short communications, and practice reports for consideration at any time.
Authors retain copyright and articles are licenced via Creative Commons Attribution 4.0 International License to make published articles more readily available and useable. Authors can submit and publish at no cost. There are no Article Processing Charges (APCs).
Upcoming issues in 2021 include:
Volume 1, Issue 1, 2021 (to be published for January - April, 2021)
Volume 1, Issue 2, 2021 (to be published in May - August, 2021)
Volume 1, Issue 3, 2021 (to be published in September - December, 2021)
Latest Issue (Article In Press and Collection)
Revisiting Broms and Bennermarks’ Original Stability Number for Tunnel Headings
Jim Shiau, Fadhil Al-Asadi
PDF Access January, 2021
For undrained clay without volume loss during plastic shearing, stability results are independent of loading directions, and the combination of surcharge, self-weight and internal supporting pressures can produce failure either in collapse or blowout in tunnel stability problems. This paper investigates the use of Broms and Bennermark’s original stability number for tunnel heading problems. The shear strength reduction method is used to obtain rigorous upper bound and lower bound factors of safety for the models under different combinations of pressures. The factor of safety results, which are functions of the stability number and depth ratio, are compared and validated by using the finite difference method as well as other existing solutions available in the literature. The dimensionless ratios employed in this study make the design charts suitable to cover a broad range of tunnel geometries and soil parameters. The charts can also be used to provide an estimation of internal tunnelling pressures, making them useful for designers and practising engineers.
Shiau, J. & Al-Asadi, F. (2020). Revisiting Broms and Bennermarks’ Original Stability Number for Tunnel Headings. RTGEE Journal. Recent Trends in Geotechnical and Geo-Environmental Engineering and Education. https://doi.org/xxxx/xxxx
Other papers to appear here - coming soon
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